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Finding the Fourth Proportional to 500,056.40, 690,071.99 and 270,608.37

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Solution

The fourth proportional to 500,056.40, 690,071.99 and 270,608.37 is: 373,436.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,056.40 : 690,071.99 = 270,608.37 : x
  2. Step 2: Convert to fraction form
    500,056.40/690,071.99 = 270,608.37/x
  3. Step 3: Cross multiply
    500,056.40x = 690,071.99 × 270,608.37
  4. Step 4: Simplify right side
    500,056.40x = 186,739,256,396.56
  5. Step 5: Solve for x
    x = 186,739,256,396.56/500,056.40
  6. Step 6: Final answer
    x = 373,436.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.